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212385583212 = 2231147227315061
BaseRepresentation
bin1100010111001100101…
…0101101000001101100
3202022012111221111120120
43011303022231001230
511434431202130322
6241322452044540
721226053446025
oct3056312550154
9668174844516
10212385583212
1182088141190
12351b3603750
131704931823a
14a3cadcdc4c
1557d09aba5c
hex31732ad06c

212385583212 has 96 divisors (see below), whose sum is σ = 552399934464. Its totient is φ = 62958028800.

The previous prime is 212385583211. The next prime is 212385583213.

212385583212 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (212385583211) and next prime (212385583213).

It is not an unprimeable number, because it can be changed into a prime (212385583211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14094162 + ... + 14109222.

It is an arithmetic number, because the mean of its divisors is an integer number (5754165984).

Almost surely, 2212385583212 is an apocalyptic number.

212385583212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212385583212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276199967232).

212385583212 is an abundant number, since it is smaller than the sum of its proper divisors (340014351252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212385583212 is a wasteful number, since it uses less digits than its factorization.

212385583212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17399 (or 17397 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

It can be divided in two parts, 212385 and 583212, that added together give a palindrome (795597).

The spelling of 212385583212 in words is "two hundred twelve billion, three hundred eighty-five million, five hundred eighty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 47 66 94 132 141 188 282 517 564 1034 1551 2068 2273 3102 4546 6204 6819 9092 13638 15061 25003 27276 30122 45183 50006 60244 75009 90366 100012 106831 150018 165671 180732 213662 300036 320493 331342 427324 497013 640986 662684 707867 994026 1175141 1281972 1415734 1988052 2123601 2350282 2831468 3525423 4247202 4700564 7050846 7786537 8494404 14101692 15573074 23359611 31146148 34233653 46719222 68467306 93438444 102700959 136934612 205401918 376570183 410803836 753140366 1129710549 1506280732 1608981691 2259421098 3217963382 4518842196 4826945073 6435926764 9653890146 17698798601 19307780292 35397597202 53096395803 70795194404 106192791606 212385583212